MIYAVIX OverLay Screen Protector Brilliant for Astell & Kern AK380 (Front and Backside sets) Anti-Fingerprints OBAK380/S/12 Works with Astell & Kern AK380 Including: Protective Sheets 2 pcs (Front and Backside one pcs each) Not including Devices. Material packing all made in Japan. This product is guaranteed only initial failure.